Christian guy vs Mormon guys

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I stumbled upon this video today.
Interesting stuff, but I found both of their tactics to "discuss" a little antagonistic, but there seems to be some truth laid out here.
I once got in a bit of a debate with some Jehovah's Witness that went something similar to this. Though I admittedly did not know my scripture like this gentleman does.
Here's the link to the video on Break.com (note, break.com is kinda like youtube, in that you never know what is going to pop up in the links around this video.) I've never tried embedding video in my blog from break.com before so we'll see if the code works or not.